1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun * Copyright (c) 2020 Rockchip Electronics Co. Ltd.
4*4882a593Smuzhiyun *
5*4882a593Smuzhiyun * Author: Zorro Liu <zorro.liu@rock-chips.com>
6*4882a593Smuzhiyun */
7*4882a593Smuzhiyun
8*4882a593Smuzhiyun #ifndef __EBC_DEV_H__
9*4882a593Smuzhiyun #define __EBC_DEV_H__
10*4882a593Smuzhiyun
11*4882a593Smuzhiyun #include <linux/notifier.h>
12*4882a593Smuzhiyun
13*4882a593Smuzhiyun /*
14*4882a593Smuzhiyun * max support panel size 2232x1680
15*4882a593Smuzhiyun * ebc module display buf use 4bit per pixel
16*4882a593Smuzhiyun * eink module display buf use 8bit per pixel
17*4882a593Smuzhiyun * ebc module direct mode display buf use 2bit per pixel
18*4882a593Smuzhiyun */
19*4882a593Smuzhiyun #define EBC_FB_SIZE 0x200000 /* 2M */
20*4882a593Smuzhiyun #define EINK_FB_SIZE 0x400000 /* 4M */
21*4882a593Smuzhiyun #define DIRECT_FB_SIZE 0x100000 /* 1M */
22*4882a593Smuzhiyun
23*4882a593Smuzhiyun #define MAX_FB_NUM 4
24*4882a593Smuzhiyun
25*4882a593Smuzhiyun #define EBC_SUCCESS (0)
26*4882a593Smuzhiyun #define EBC_ERROR (-1)
27*4882a593Smuzhiyun
28*4882a593Smuzhiyun /*
29*4882a593Smuzhiyun * ebc status notify
30*4882a593Smuzhiyun */
31*4882a593Smuzhiyun #define EBC_OFF (0)
32*4882a593Smuzhiyun #define EBC_ON (1)
33*4882a593Smuzhiyun #define EBC_FB_BLANK (2)
34*4882a593Smuzhiyun #define EBC_FB_UNBLANK (3)
35*4882a593Smuzhiyun
36*4882a593Smuzhiyun /*
37*4882a593Smuzhiyun * ebc system ioctl command
38*4882a593Smuzhiyun */
39*4882a593Smuzhiyun #define EBC_GET_BUFFER (0x7000)
40*4882a593Smuzhiyun #define EBC_SEND_BUFFER (0x7001)
41*4882a593Smuzhiyun #define EBC_GET_BUFFER_INFO (0x7002)
42*4882a593Smuzhiyun #define EBC_SET_FULL_MODE_NUM (0x7003)
43*4882a593Smuzhiyun #define EBC_ENABLE_OVERLAY (0x7004)
44*4882a593Smuzhiyun #define EBC_DISABLE_OVERLAY (0x7005)
45*4882a593Smuzhiyun #define EBC_GET_OSD_BUFFER (0x7006)
46*4882a593Smuzhiyun #define EBC_SEND_OSD_BUFFER (0x7007)
47*4882a593Smuzhiyun
48*4882a593Smuzhiyun /*
49*4882a593Smuzhiyun * IMPORTANT: Those values is corresponding to android hardware program,
50*4882a593Smuzhiyun * so *FORBID* to changes bellow values, unless you know what you're doing.
51*4882a593Smuzhiyun * And if you want to add new refresh modes, please appended to the tail.
52*4882a593Smuzhiyun */
53*4882a593Smuzhiyun enum panel_refresh_mode {
54*4882a593Smuzhiyun EPD_AUTO = 0,
55*4882a593Smuzhiyun EPD_OVERLAY = 1,
56*4882a593Smuzhiyun EPD_FULL_GC16 = 2,
57*4882a593Smuzhiyun EPD_FULL_GL16 = 3,
58*4882a593Smuzhiyun EPD_FULL_GLR16 = 4,
59*4882a593Smuzhiyun EPD_FULL_GLD16 = 5,
60*4882a593Smuzhiyun EPD_FULL_GCC16 = 6,
61*4882a593Smuzhiyun EPD_PART_GC16 = 7,
62*4882a593Smuzhiyun EPD_PART_GL16 = 8,
63*4882a593Smuzhiyun EPD_PART_GLR16 = 9,
64*4882a593Smuzhiyun EPD_PART_GLD16 = 10,
65*4882a593Smuzhiyun EPD_PART_GCC16 = 11,
66*4882a593Smuzhiyun EPD_A2 = 12,
67*4882a593Smuzhiyun EPD_DU = 13,
68*4882a593Smuzhiyun EPD_RESET = 14,
69*4882a593Smuzhiyun EPD_SUSPEND = 15,
70*4882a593Smuzhiyun EPD_RESUME = 16,
71*4882a593Smuzhiyun EPD_POWER_OFF = 17,
72*4882a593Smuzhiyun EPD_PART_EINK = 18,
73*4882a593Smuzhiyun EPD_FULL_EINK = 19,
74*4882a593Smuzhiyun };
75*4882a593Smuzhiyun
76*4882a593Smuzhiyun /*
77*4882a593Smuzhiyun * IMPORTANT: android hardware use struct, so *FORBID* to changes this, unless you know what you're doing.
78*4882a593Smuzhiyun */
79*4882a593Smuzhiyun struct ebc_buf_info {
80*4882a593Smuzhiyun int offset;
81*4882a593Smuzhiyun int epd_mode;
82*4882a593Smuzhiyun int height;
83*4882a593Smuzhiyun int width;
84*4882a593Smuzhiyun int panel_color;
85*4882a593Smuzhiyun int win_x1;
86*4882a593Smuzhiyun int win_y1;
87*4882a593Smuzhiyun int win_x2;
88*4882a593Smuzhiyun int win_y2;
89*4882a593Smuzhiyun int width_mm;
90*4882a593Smuzhiyun int height_mm;
91*4882a593Smuzhiyun };
92*4882a593Smuzhiyun
93*4882a593Smuzhiyun #if IS_ENABLED(CONFIG_ROCKCHIP_EBC_DEV)
94*4882a593Smuzhiyun int ebc_register_notifier(struct notifier_block *nb);
95*4882a593Smuzhiyun int ebc_unregister_notifier(struct notifier_block *nb);
96*4882a593Smuzhiyun int ebc_notify(unsigned long event);
97*4882a593Smuzhiyun #else
ebc_register_notifier(struct notifier_block * nb)98*4882a593Smuzhiyun static inline int ebc_register_notifier(struct notifier_block *nb)
99*4882a593Smuzhiyun {
100*4882a593Smuzhiyun return 0;
101*4882a593Smuzhiyun }
102*4882a593Smuzhiyun
ebc_unregister_notifier(struct notifier_block * nb)103*4882a593Smuzhiyun static inline int ebc_unregister_notifier(struct notifier_block *nb)
104*4882a593Smuzhiyun {
105*4882a593Smuzhiyun return 0;
106*4882a593Smuzhiyun }
107*4882a593Smuzhiyun
ebc_notify(unsigned long event)108*4882a593Smuzhiyun static inline int ebc_notify(unsigned long event)
109*4882a593Smuzhiyun {
110*4882a593Smuzhiyun return 0;
111*4882a593Smuzhiyun }
112*4882a593Smuzhiyun #endif
113*4882a593Smuzhiyun
114*4882a593Smuzhiyun #endif
115